Physics – 3.2.2 Refraction of light | e-Consult
3.2.2 Refraction of light (1 questions)
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Given:
- n1 = 1.0 (air)
- n2 = 1.5 (glass)
- i = 30° (angle of incidence)
To find: r (angle of refraction)
Equation: n = sin i / sin r
Rearranging the equation to solve for r: sin r = sin i / n2
sin r = sin 30° / 1.5
sin r = 0.5 / 1.5
sin r = 1/3
r = arcsin(1/3)
r ≈ 19.47°
Answer: The angle of refraction is approximately 19.47 degrees.